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(No Model.) 2 Sheets-Sheet 1.

W. P. WINNER.

HEATING FURNACE. No. 501,034. Patented July 4, 1893.

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'W. P. WINNER; HEATING'FURNAGB.

Patented July 4, 1893.

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WILLIAM P. WINNER, OF QUAKERTOWN, PENNSYLVANIA, ASSIGNOR TO HIMSELF,WILLIAM P. ROBERTS, FRANK OAVANAUGH, OLIVER R. SOHEETZ, AND CHARLES A-KLUMP, OF SAME PLACE.

HEATING-FURNACE.

SPECIFICATION forming part of Letters Patent No. 501,034, dated July 4,1893.

Application filed March 27, 1893- Serial No. 467.770. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM P. WINNER, a

citizen of the United States, and a residentv of Quakertown, Buckscounty, Pennsylvania, have invented certain Improvements inHeating-Furnaces, of which the following is aspecification.

The object of my invention is to so construct a hot air heating furnacethat the products of combustion will pass away from the fire pot towardthe front of the furnace and to the smoke flue in a circuitous path,heating the air more thoroughly than in the old method of allowing theproducts of combustion to pass away from the combustion chamber at therear.

In the accompanying drawings :Figure 1, is a View in elevation, partlyin section, illustrating my improved hot air furnace. Fig. 2, is asection on the line 1-2, Fig. 1. Fig. 3, is a section on the line 34,Fig. 1; and Fig.4, is a detached perspective View of the crab or fluesection.

The furnace shown in the accompanying drawings is what is termed aportable heater, but it will be understood that my invention can beapplied to brick set heaters as well.

A is the casing, B the fire pot section, D the flue section mounted uponthe fire pot section, and mounted upon this flue section are the drumsa,a' and 0?, having suitable capsband b, so that the space 0 within theinner drum 0, and the space 0' between the drums at and a connectdirectly with the combustion chamber dot the flue section, while thespace ebetween the drums at and a and the space 6 between the drum a andthe casing A are air spaces for the passage of the air to be heated.

The fire door opening (1 is provided with a suitable door (P. This firedoor opening communicates with the space 0 through an opening (1 in thetop plate D of the flue section. On each side of this fire door openingd are extensions D in which are formed fines or passages f communicatingwith the combustion chamber (1, and in the top plate D are openings fwhich form a communication between the said flues f and the space 0.Thus it will be seen that there are three openings into the space orpassage 0' for the products of combustion, all at the front of thefurnace, and the duo's f can be made of such asize that the products ofcombustion will readily pass into the space 0, so that the fire will notchoke, and a better combustion will be effected.

The smoke fiue g is formed in the rear of the flue section G, and can bemade to communicate directly with the combustion chamber 61 on operatinga damper g, as clearly shown in Fig. 1, by turning the handle 9 Thisdamper, however, is only turned down when the fire is being made or whenit is wished to reduce considerably, the heat of the furnace, as theproducts of combustion will then pass directly out through the smokeflue, but when the damper is turned up all communication with thepassage at the rear of the furnace is cut off except through the frontflues f and d.

In order to prevent the too rapid passage of the products of combustionthrough the smoke flue, I mount within, the space 0 on each side of thefurnace, a deflecting plate 0 so that the products of combustion willhave to pass as shown by the arrows in Fig. 1, in

a circuitous path, thoroughly heating the drums at and a andconsequently heating the air to a greater degree as it passes throughthefurnace. The top plate D has an opening d at the rear, whichcommunicates with the d no 9 formed in a tubular section mounted betweenthe top plate and the flue section. This passage communicates with thesmoke flue g.

The flue section D is preferably made of cast metal, the extensions Dbeing part of the structure, and are so formed that they receive thegreater proportion of the products of combustion which is' naturallycarried away from the fire door, so that when the said door is openedthere will not be an escape of gas; at the same time the advantage of acomplete circulation is obtained. p

The flue section D has a bottom plate D and bolts extend from the topand bottom plate tying the structure together.

I claim as my invention- 1. The combination in a heating furnace, of

the tire pot, the flue section mounted above the fire pot, a smoke fineopening at the rear, a damper therefor, the fire door, extensions oneach side of the fire door opening, fines formed in said extensions,drums mounted above the flue section and forming a passage for theproducts of combustion,substantially as described.

2. The combination in a heating furnace of the fire pot, the fluesection mounted above the fire pot, fire door opening in the front ofsaid section, extensions on each side of said opening, passages in saidextensions communicating with the combustion chamber, drums mountedabove the flue section forminga passage for the products of combustionand communicating only with the passages at the front of the furnace,deflecting plates in said passage, and a passage at the rear forming acommunication between the space between the drums and the smoke flue,substantially as described.

3. The combination in a heating furnace, of the fire pot section anddrums, a flue section mounted between the fire pot section and thedrums, said flue section composed of three parts, a center piece inwhich the fines are formed, and top and bottom plates, with boltssecuring the said parts together, each part having side extensions atthe front forming the fines between the combustion chamber and the spacebetween the drums, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WILLIAM P. WINNER.

Witnesses:

WILLIAM D. CONNER, JOSEPH H. KLEIN.

